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1 | // Created on: 1991-05-13 |
2 | // Created by: Laurent PAINNOT |
3 | // Copyright (c) 1991-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _math_MultipleVarFunctionWithGradient_HeaderFile |
18 | #define _math_MultipleVarFunctionWithGradient_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <math_MultipleVarFunction.hxx> |
25 | #include <Standard_Integer.hxx> |
26 | #include <Standard_Boolean.hxx> |
27 | #include <math_Vector.hxx> |
28 | #include <Standard_Real.hxx> |
29 | |
30 | |
31 | |
32 | //! The abstract class MultipleVarFunctionWithGradient |
33 | //! describes the virtual functions associated with a multiple variable function. |
34 | class math_MultipleVarFunctionWithGradient : public math_MultipleVarFunction |
35 | { |
36 | public: |
37 | |
38 | DEFINE_STANDARD_ALLOC |
39 | |
40 | |
41 | //! Returns the number of variables of the function. |
42 | Standard_EXPORT virtual Standard_Integer NbVariables() const = 0; |
43 | |
44 | //! Computes the values of the Functions <F> for the variable <X>. |
45 | //! Returns True if the computation was done successfully, |
46 | //! False otherwise. |
47 | Standard_EXPORT virtual Standard_Boolean Value (const math_Vector& X, Standard_Real& F) = 0; |
48 | |
49 | //! Computes the gradient <G> of the functions for the variable <X>. |
50 | //! Returns True if the computation was done successfully, |
51 | //! False otherwise. |
52 | Standard_EXPORT virtual Standard_Boolean Gradient (const math_Vector& X, math_Vector& G) = 0; |
53 | |
54 | //! computes the value <F> and the gradient <G> of the |
55 | //! functions for the variable <X>. |
56 | //! Returns True if the computation was done successfully, |
57 | //! False otherwise. |
58 | Standard_EXPORT virtual Standard_Boolean Values (const math_Vector& X, Standard_Real& F, math_Vector& G) = 0; |
59 | |
60 | |
61 | |
62 | |
63 | protected: |
64 | |
65 | |
66 | |
67 | |
68 | |
69 | private: |
70 | |
71 | |
72 | |
73 | |
74 | |
75 | }; |
76 | |
77 | |
78 | |
79 | |
80 | |
81 | |
82 | |
83 | #endif // _math_MultipleVarFunctionWithGradient_HeaderFile |